Bees cazilsle



E. CARUSLE.'

HEADUGHT LENS. APPLlcATloN HLED MAH. 26. 1919.

Emma sep-t. 93,1919;

l edge 8 being at the front side of an edge 12 titting in the BERT@ il LE, F SANTA Ml', CALIFORNML HEDLIGHLENS.

Specication of Letters Patent.

Patented Sept., 23, ifdidi upplieetion filed Eieren 2e, 1919. Serial We. 2%,375

A To all wkom t muy concern:

Be it known that I, Bnu'r Gennisin, a citizen of the United States,

residing at Santa Ana, in the county of Grange and StateKV ofl California, have invented new and useful Improvements in Headlight-Lenses, of which the following is a speciiication.

My invention relates tollieadligfnt lenses and .consists o the novel features herein shown, described and claimed.

which may be used in connection with an of the ordinary main lenses and which wi satisfactorily perform the operation et' dimming and didusing the light und eliminate the objectionable glare.

Figure l is a vertical longitudinal dief metrical sectional detail of a headlight with a supplemental lens embodying the principles of my invention in osition for use.

.Fig 2 is a front elevation upon a reduced scale of the supplemental lens.

The headlight construction i may be any of the usual constructions having a redector 2 and an electric lamp 3. As shown, the main lens 4 is mounted from the inside in a'iinisliing ring and cap 5 having supportn ing clips .6 extending inwardl and a cushion ring 7 at the rear side of t e glass in opposition to the bearing edge 8, said bearing the glass.

My supplemental lens 9 is circular in plan and substantially the same size as the main lens 4. The supplemental lens has a rim portion 10 having a flat front/altace 11 litting the liat rear face of the main lens 4, clips 6 between the cushion 7 and the main lens, tlie curved face 13 at the rear side and op osite tlfie liat face ll, the reversely curve tace le extending backwardly and inwardly from the face 13, the rounded face 15 extending inwardly and backwardly from the face 1li, the dat face 16 extending inwardly from the rounded face 15 substantially parallel with the main lens, or'in a transverse plane, and the curved front face' i7 extending from the inner edge of the flat face 11 to the in- 11er edge 18 of the iiat face 16, there being a circularL opening 19 bounded by the inner edge 18. The inner edge 18 is concentric to the lamp 3 and nearly lialir' way between the lamp filament and tllie main lens Ll, the

object is to ineke a supplemental iene4 inner edge of the dat face li is concentric to the inner edge 18, and the inner fece 17 is nearly parallel with the redector 2 and concentric to the redector. lin cross section the glass is thickened on the line 20 all the way around and on the line 21. The face 17 is concave, and the face 15 joined to the faces le and 16 makes a convexity, and the face 13 is concave.

ln the practical operation the rays of iight redected by the' outer partei the redector 2 ordinarily join with the light coining straight from thelanip and produce a concentration ot iight which is glaring and blinding. In the use of my supplemental lens these rays of light passing from the outer part of the redector will strike the facesy 13, 14, 15 and 16 and be interrupted and didused from the face 17. The supplemental lens will fill all the requirements of a dimmer, and at the same time present a better appearance.

Various changes may be made without departing from the spirit of my invention as claimed.

l claim:

l. As an article'of manufacture a supplemental lens having a central opening and e concave-convex portion around the central opening with the concave side to the iront and the curvature of the convex face being greater than the curvature of the concave face, and there being a portion extending outwardly :from the concave-'convex portion and adapted to fit against a main lens, the central opening in the supplemental lens allowing the rays to pass freely to the centralportion of the main lens.

2. As an article of manufacture a supplemental lens having a central opening and a. concave-couver: ortion around the central opening with tie concave side to the front and the curvature of the convex face 'being greater than the curvature of the concave face, and there being a portion extending outwardly from the concavocon- Vex portion and adapted to t against n. main lens, the bearing portion having e conn cave rear face.

ln testimony whereof l lhavnv signed my naine to this speeication,

BERT Cdliiafif 

